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    Subject[PATCH v2 5/8] input: Device tree support for LPC32xx touchscreen
    Date
    This patch adds device tree support for the LPC32xx SoC's touchscreen
    controller.

    Signed-off-by: Roland Stigge <stigge@antcom.de>
    Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>

    ---

    Applies to v3.4-rc3

    Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt | 16 ++++++++++
    drivers/input/touchscreen/lpc32xx_ts.c | 10 ++++++
    2 files changed, 26 insertions(+)

    --- /dev/null
    +++ linux-2.6/Documentation/devicetree/bindings/input/touchscreen/lpc32xx-tsc.txt
    @@ -0,0 +1,16 @@
    +* NXP LPC32xx SoC Touchscreen Controller (TSC)
    +
    +Required properties:
    +- compatible: must be "nxp,lpc32xx-tsc"
    +- reg: physical base address of the controller and length of memory mapped
    + region.
    +- interrupts: The TSC/ADC interrupt
    +
    +Example:
    +
    + tsc@40048000 {
    + compatible = "nxp,lpc32xx-tsc";
    + reg = <0x40048000 0x1000>;
    + interrupt-parent = <&mic>;
    + interrupts = <39 0>;
    + };
    --- linux-2.6.orig/drivers/input/touchscreen/lpc32xx_ts.c
    +++ linux-2.6/drivers/input/touchscreen/lpc32xx_ts.c
    @@ -22,6 +22,7 @@
    #include <linux/clk.h>
    #include <linux/io.h>
    #include <linux/slab.h>
    +#include <linux/of.h>

    /*
    * Touchscreen controller register offsets
    @@ -383,6 +384,14 @@ static const struct dev_pm_ops lpc32xx_t
    #define LPC32XX_TS_PM_OPS NULL
    #endif

    +#ifdef CONFIG_OF
    +static struct of_device_id lpc32xx_tsc_of_match[] = {
    + { .compatible = "nxp,lpc32xx-tsc", },
    + { },
    +};
    +MODULE_DEVICE_TABLE(of, lpc32xx_tsc_of_match);
    +#endif
    +
    static struct platform_driver lpc32xx_ts_driver = {
    .probe = lpc32xx_ts_probe,
    .remove = __devexit_p(lpc32xx_ts_remove),
    @@ -390,6 +399,7 @@ static struct platform_driver lpc32xx_ts
    .name = MOD_NAME,
    .owner = THIS_MODULE,
    .pm = LPC32XX_TS_PM_OPS,
    + .of_match_table = of_match_ptr(lpc32xx_tsc_of_match),
    },
    };
    module_platform_driver(lpc32xx_ts_driver);

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